why crash? libsystem_kernel.dylib`mach_msg2_trap: 0x247cb8ccc <+0>: mov x16, #-0x2f ; =-47 0x247cb8cd0 <+4>: svc #0x80 -> 0x247cb8cd4 <+8>: ret
why crash? libsystem_kernel.dylib`mach_msg2_trap: 0x247cb8ccc <+0>: mov x16, #-0x2f ; =-47 0x247cb8cd0 <+4>: svc #0x80 -> 0x247cb8cd4 <+8>: ret
can not send picture